Looking for rotational molding alternatives for California? Want affordable custom plastic molding that is cost effective for Hickman area? Then give us a call at our toll free number 866-971-7861 or request a quote today!

roto-molding-Hickman-Rotational moulding pertains to a plastic manufacturing method that makes hollow stress-free items. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various designs, sizes and colors. This method is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The feature that makes this different from other plastic manufacturing techniques in that no pressure is required. It also has few rivals when it comes to the manufacture of large size hollow items which are long lasting and inexpensive.There is a wide variety of items that are developed by this process including large water tanks, automobile items, complex shaped medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of style and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Hickman CA 95323, it is a cheaper way of making plastics. This is because apart from the fact that no pressure is required, the cost of mold preparation is low.
  • A wide array of design options.
    There is no limit to the kind of design one may want to create. The rotomolding process therefore allows for the manufacturing of products that have complex shapes for different purposes.
  • Size.
    The process provides room for the manufacturing of products of any size, large or small. As mentioned earlier, it has few competitors when it comes to the making of large tanks at low costs.
  • Low risk.
    Due to the low costs of creating a mould, the process allows for test runs before one can decide whether to do mass production. It therefore minimizes the risk of losing a lot of investment.
  • Durable products.
    The process allows for even coating of the mould with the heated polymer, giving the product a wall with uniform thickness. It also gives the option of double coating for increased durability. Sometimes metal inserts are placed inside the mould to further strengthen the product.
  • Environmentally friendly.
    There is no waste that could have a negative impact on the environment because the products that cannot be used are reground and reused as polymer.

Examples of Products Made by Rotational Molding

Plastic Products-Hickman-Rotocasting is a very versatile process, making it possible to create a variety of products for different industries.

  • Agricultural industry– From cattle feeders, water troughs, spray tanks etc.
  • Automotive industry– Filler tubes, dash boards, arm rests, sun visors, air conditioner duct work etc.
  • Furniture– We have plastic cabinets, chairs and tables made from this form of moulding.

There are numerous California plastic products also that have been made for the marine industry, lighting, waste storage and transportation, kayaks etc.

Few Disadvantages – There are nominal disadvantages that have been associated with rotocasting. For instance:

  • – The process is relatively slow when compared to injection moulding.
  • – There is a limitation when it comes to the type of raw material you can use. Only poly based and nylon polymers can be used.
  • – The process comes with an increased cost because the polymer has to be ground to powder form before use.
    These limitations are often overlooked considering that the process is still relatively cheap and offers more in terms of variety when it comes to the finished range of products.

Remember – There are new developments and discoveries that are being made as the world of plastic manufacturing in Hickman California continuously. For instance, tests are being done to see whether there are other materials that can be used for this process. But so far, rotomoulding offers a good option for the production of a wide range of inexpensive plastic products.

The Rotomolding Method in Detail

This moulding procedure has been used since ancient times for creatingvseverl items. Egyptians as an example, worked with rotomoulding solutions in the making of ceramics. The Swiss were also working with this rotation design to make hollow chocolate eggs. Some plastic products in the USA were created using this approach some time between 1940 and 1950. Given that it was looked at to be a fairly slow process, the procedure has however taken long to catch on

1. Mold preparation.
A fixed quantity of polymer in particle form is filled into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The colour preferred for the end item is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic assembly.

Preheating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then sealed and put inside the oven.

2. The heating and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done gradually, about 20 revolutions per sixty seconds. Something that is vital at this moment is the period of time the mold will spend within the oven. If it stays to long, the product will lose value and durability, producing a weak item. If it is taken out from the oven prematurely, the polymer will not have melted correctly, which generates bubbles in the finalized product line.

3. Mould cooling down.
When the product has completely spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces a little for ease of removal from the mould. This is an additional step that depends upon a lot on the right timing, since quick cooling decreases the material too fast, causing warping of the material.

4. The offloading or de-molding phase.
Once the component inside te mould has cooled successfully, the person managing the process can then extract the completed product from the mould. The process is repeated from the beginning, providing a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Hickman CA 95323 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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